Cyanus depressus — a medium houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Cyanus depressus

Cyanus Depressus

Updated · 10 observations
ON THIS PLANT
A note from PlantMom

Iranian knapweed has strong disease resistance and is generally not prone to illnesses. However, it can be affected by pests and diseases present in its environment. Such infections are typically not severe. Regarding care, the plant requires moderate maintenance. It should be pruned regularly to preserve appearance and encourage healthy growth. Fertilizing can also help increase flowering. Iranian knapweed is appropriate for anyone with outdoor space, such as a garden or patio, and does not demand much gardening experience. It may need more attention if grown indoors.

— PlantMom
CARE GUIDE

How to keep Cyanus Depressus.

Light

Iranian knapweed comes from bright, open habitats where it prospers in full sun. It can tolerate partial sun but favors direct sunlight for optimal growth. This plant, which can be annual or biennial, is recognized for its sun-loving nature.

Temperature

Iranian knapweed can tolerate a broad range of temperatures, though its distribution may still be constrained by different combinations of moisture and heat. It grows best in warm summer climates with sufficient rainfall or watering. Extended periods of cloudy, rainy weather or prolonged high temperatures can increase the likelihood of the plant dying. In winter, protecting it from the cold can improve its chances of survival.

Fertilizer

When most of the Iranian knapweed's flowers have fully opened, resume fertilizing. During the period of peak bloom production, feed it every three to four weeks as the weather allows. Then, once the plant begins to produce fewer new flowers, stop fertilizing; there's no need to feed it when it can no longer produce additional blooms.

CHARACTERISTICS

Botanical profile.

Plant Type
Herb
Life Cycle
Annual, Biennial
Genus
Cyanus
Family
Asteraceae
Hardiness Zone
3-9
Mature Height
30 cm to 61 cm
Mature Spread
20 cm to 30 cm
Leaf Color
Green
Leaf Type
Deciduous
Flower Color
Blue
Flower Size
3.05 cm to 5.08 cm
Bloom Time
Late spring, Early summer, Mid summer
Planting Time
Spring, Autumn
Harvest Time
Mid summer, Late summer, Early fall
Native Area
Uzbekistan, Afghanistan, Iraq, Tajikistan, Turkey, Kyrgyzstan, Kazakhstan, India, Iran, Armenia, Pakistan, Azerbaijan, Ukraine, Belarus, Turkmenistan
ALSO KNOWN AS

Other names.

en Iranian knapweed en Dark bluebottle
ALSO IN THE LIBRARY

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